<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>

       
        function add(x,y){
            return x + y;   
        }

        var result = add(10,20);
        console.log(result);
        
     



    </script>
</body>
</html>